.app{height:100%;width:100%;display:flex;flex-direction:column;overflow:hidden;position:relative}.app-loading{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--text-secondary)}.app-loading-spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}.fm-container{height:100%;display:flex;flex-direction:column;background:var(--bg-primary)}.fm-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;padding-top:max(16px,env(safe-area-inset-top));border-bottom:1px solid var(--border);background:var(--bg-secondary)}.fm-header h1{font-size:20px;font-weight:700;color:var(--text-primary)}.fm-header-actions{display:flex;gap:8px}.fm-btn{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--bg-tertiary);transition:background .2s;font-size:20px}.fm-btn:active{background:var(--border-light)}.fm-list{flex:1;padding:12px 16px;padding-bottom:calc(12px + var(--safe-bottom))}.fm-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-muted);gap:12px;text-align:center;padding:40px 20px}.fm-empty-icon{font-size:48px;opacity:.5}.fm-empty p{font-size:14px;line-height:1.6}.fm-empty-btn{margin-top:12px;padding:12px 28px;background:var(--accent);color:#fff;border-radius:var(--radius);font-weight:600;font-size:15px;transition:background .2s}.fm-empty-btn:active{background:var(--accent-hover)}.fm-item{display:flex;align-items:center;padding:14px 16px;background:var(--bg-card);border-radius:var(--radius);margin-bottom:8px;transition:background .2s;cursor:pointer}.fm-item:active{background:var(--bg-tertiary)}.fm-item-icon{font-size:24px;margin-right:14px;flex-shrink:0}.fm-item-info{flex:1;min-width:0}.fm-item-name{font-size:16px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.fm-item-time{font-size:12px;color:var(--text-muted);margin-top:2px}.fm-item-actions{display:flex;gap:4px;flex-shrink:0}.fm-item-btn{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;transition:background .2s}.fm-item-btn:active{background:var(--accent-light)}.fm-item-btn.danger:active{background:#ef444426}.editor-container{height:100%;display:flex;flex-direction:column;background:var(--bg-primary)}.editor-header{display:flex;align-items:center;padding:12px 16px;padding-top:max(12px,env(safe-area-inset-top));border-bottom:1px solid var(--border);background:var(--bg-secondary);gap:12px;flex-shrink:0}.editor-back{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;background:var(--bg-tertiary);transition:background .2s;flex-shrink:0}.editor-back:active{background:var(--border-light)}.editor-header-info{flex:1;display:flex;flex-direction:column;align-items:flex-start;min-width:0;gap:2px}.editor-title-text{font-size:16px;font-weight:700;color:var(--text-primary);cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;padding:2px 4px;border-radius:4px;transition:background .15s}.editor-title-text:active{background:var(--accent-light)}.editor-title-input{width:100%;font-size:16px;font-weight:700;color:var(--text-primary);background:var(--bg-primary);border:1px solid var(--accent);outline:none;border-radius:4px;padding:2px 4px}.editor-chapter-btn{display:flex;align-items:center;gap:4px;padding:2px 8px;border-radius:12px;background:var(--bg-tertiary);font-size:13px;color:var(--text-secondary);transition:background .15s;max-width:100%}.editor-chapter-btn:active{background:var(--accent-light)}.editor-chapter-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:140px}.editor-chapter-arrow{font-size:10px;flex-shrink:0}.editor-header-actions{display:flex;gap:4px;flex-shrink:0}.editor-header-btn{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;background:var(--bg-tertiary);color:var(--text-secondary);transition:background .2s}.editor-header-btn:active{background:var(--border-light)}.ws-overlay.ws-fullscreen{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--bg-primary);display:flex;z-index:1000;animation:ws-fade-in .2s ease}@keyframes ws-fade-in{0%{opacity:0}to{opacity:1}}.ws-fullscreen-panel{width:100%;height:100%;display:flex;flex-direction:column;overflow:hidden}.ws-fullscreen-header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;padding-top:max(12px,env(safe-area-inset-top));border-bottom:1px solid var(--border);background:var(--bg-secondary);flex-shrink:0}.ws-fullscreen-header-left{display:flex;align-items:center;gap:6px}.ws-fullscreen-header-left h3{font-size:18px;font-weight:700;color:var(--text-primary);margin:0 0 0 4px}.ws-back-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--text-secondary);font-size:20px;cursor:pointer;border-radius:8px;transition:all .2s}.ws-back-btn:hover{background:var(--bg-hover, rgba(128, 128, 128, .1));color:var(--text-primary)}.ws-fullscreen-header-actions{display:flex;align-items:center;gap:8px}.ws-fullscreen-body{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:24px;max-width:800px;width:100%;margin:0 auto}.ws-close-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--text-secondary);font-size:18px;cursor:pointer;border-radius:8px;transition:all .2s}.ws-close-btn:hover{background:var(--bg-hover, rgba(128, 128, 128, .1));color:var(--text-primary)}.ws-group{display:flex;flex-direction:column;gap:8px}.ws-group-header{display:flex;align-items:center;gap:8px;padding-bottom:8px;border-bottom:1px solid var(--border)}.ws-group-title{font-size:15px;font-weight:600;color:var(--text-primary)}.ws-group-hint{font-size:12px;color:var(--text-muted);opacity:.7}.ws-card{display:flex;align-items:flex-start;gap:10px;padding:12px 14px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:10px;transition:border-color .2s,background .2s}.ws-card.editing{border-color:var(--accent);background:var(--bg-primary)}.ws-card-checkbox{margin-top:5px;flex-shrink:0;cursor:pointer;width:18px;height:18px;accent-color:var(--accent)}.ws-card-view{flex:1;min-width:0}.ws-card-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.ws-card-title-row{display:flex;align-items:center;gap:8px;min-width:0}.ws-card-title{font-size:15px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ws-card-badge{font-size:11px;padding:2px 8px;border-radius:10px;font-weight:500;white-space:nowrap;flex-shrink:0}.ws-card-badge.fixed{background:#6366f126;color:#818cf8;border:1px solid rgba(99,102,241,.3)}.ws-card-badge.optional{background:#22c55e26;color:#4ade80;border:1px solid rgba(34,197,94,.3)}.ws-card-content{font-size:13px;color:var(--text-secondary);margin-top:6px;line-height:1.6;white-space:pre-wrap;word-break:break-word}.ws-card-actions{display:flex;gap:6px;flex-shrink:0}.ws-btn{padding:6px 12px;font-size:12px;border:1px solid var(--border);border-radius:6px;background:var(--bg-primary);color:var(--text-secondary);cursor:pointer;transition:all .2s;white-space:nowrap}.ws-btn:hover{border-color:var(--accent);color:var(--accent)}.ws-btn-save{background:var(--accent);color:#fff;border-color:var(--accent)}.ws-btn-save:hover{opacity:.85;color:#fff}.ws-btn-delete{color:#ef4444;border-color:#ef444466}.ws-btn-delete:hover{background:#ef4444;color:#fff;border-color:#ef4444}.ws-btn-add{padding:8px 18px;font-size:13px;font-weight:500;background:var(--accent);color:#fff;border-color:var(--accent)}.ws-btn-add:hover{opacity:.85;color:#fff}.ws-type-options{display:flex;gap:6px}.ws-type-btn{padding:6px 14px;font-size:12px;border:1px solid var(--border);border-radius:8px;background:var(--bg-primary);color:var(--text-secondary);cursor:pointer;transition:all .2s;white-space:nowrap}.ws-type-btn:hover{border-color:var(--accent);color:var(--accent)}.ws-type-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}.ws-empty{font-size:13px;color:var(--text-muted);opacity:.5;text-align:center;padding:20px 0}.ws-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1100;animation:ws-fade-in .15s ease;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.ws-modal{width:min(480px,90vw);background:var(--bg-secondary);border-radius:14px;box-shadow:0 8px 40px #0000004d;display:flex;flex-direction:column;overflow:hidden;animation:ws-slide-up .2s ease}@keyframes ws-slide-up{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.ws-modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}.ws-modal-header h4{margin:0;font-size:16px;font-weight:600;color:var(--text-primary)}.ws-modal-body{padding:20px;display:flex;flex-direction:column;gap:14px}.ws-modal-input{width:100%;padding:10px 12px;font-size:15px;font-weight:500;color:var(--text-primary);background:var(--bg-primary);border:1px solid var(--border);border-radius:8px;outline:none;font-family:inherit;box-sizing:border-box}.ws-modal-input:focus{border-color:var(--accent)}.ws-modal-textarea{width:100%;padding:10px 12px;font-size:13px;line-height:1.6;color:var(--text-primary);background:var(--bg-primary);border:1px solid var(--border);border-radius:8px;outline:none;resize:vertical;font-family:inherit;box-sizing:border-box}.ws-modal-textarea:focus{border-color:var(--accent)}.ws-modal-type{display:flex;flex-direction:column;gap:8px}.ws-modal-type-label{font-size:13px;font-weight:500;color:var(--text-secondary)}.ws-modal-footer{display:flex;justify-content:flex-end;gap:8px;padding:14px 20px;border-top:1px solid var(--border)}.editor-body{flex:1;display:flex;flex-direction:column;overflow:hidden;position:relative}.editor-textarea-wrapper{flex:1;display:flex;flex-shrink:1;flex-direction:column;overflow:hidden}.editor-content-area{flex:1 1 auto;display:flex;flex-direction:column;overflow:hidden;min-height:0;transition:flex .35s ease,opacity .3s ease,padding .3s ease}.editor-content-collapsed{flex:0 0 0;min-height:0;height:0;opacity:0;overflow:hidden;padding:0;margin:0}.editor-textarea{flex:1;width:100%;padding:20px;font-size:16px;line-height:1.8;color:var(--text-primary);background:transparent;border:none;outline:none;resize:none;font-family:inherit;white-space:pre-wrap;word-wrap:break-word}.editor-textarea::placeholder{color:var(--text-muted)}.editor-word-count{padding:6px 10px;font-size:12px;color:var(--text-muted);border-top:1px solid var(--border);background:var(--bg-secondary);flex-shrink:0;display:flex;align-items:center;justify-content:space-between}.editor-word-count-left{display:flex;align-items:center;gap:6px}.editor-fontsize-btn{width:35px;height:24px;font-size:15px;font-weight:600;color:var(--text-primary);background:var(--bg-tertiary);border-radius:var(--radius-sm);transition:background .2s;display:flex;align-items:center;justify-content:center;line-height:1}.editor-fontsize-btn:active{background:var(--border-light)}.editor-format-btn{padding:3px 12px;font-size:12px;color:var(--accent);background:var(--bg-tertiary);border-radius:var(--radius-sm);transition:background .2s;font-weight:500}.editor-format-btn:active{background:var(--border-light)}.editor-history-btn{width:26px;height:26px;padding:0 20px;font-size:14px;color:var(--accent);background:var(--bg-tertiary);border-radius:var(--radius-sm);transition:background .2s;display:inline-flex;align-items:center;justify-content:center}.editor-history-btn:active:not(:disabled){background:var(--border-light)}.editor-history-btn:disabled{opacity:.3;cursor:default}.selection-menu{position:absolute;z-index:100;display:flex;gap:4px;padding:6px;background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius);box-shadow:var(--shadow);animation:fadeIn .15s ease}.selection-menu-btn{padding:8px 14px;font-size:13px;font-weight:500;border-radius:var(--radius-sm);color:var(--text-primary);background:var(--bg-tertiary);transition:background .2s;white-space:nowrap}.selection-menu-btn:active{background:var(--accent);color:#fff}.chat-container{flex-shrink:0;border-top:1px solid var(--border);background:var(--bg-secondary);display:flex;flex-direction:column;max-height:45%;transition:max-height .35s ease,flex .35s ease}.chat-container.chat-default{height:50%}.chat-container.chat-full{flex:1;height:100%;max-height:none}.chat-container.chat-collapsed{height:none}.chat-container.chat-collapsed .chat-messages{display:none}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;border-bottom:1px solid var(--border);cursor:pointer;flex-shrink:0}.chat-header-left{display:flex;align-items:center;gap:8px}.chat-header-left h3{font-size:14px;font-weight:600}.chat-model-badge{font-size:11px;padding:2px 8px;background:var(--accent-light);color:var(--accent);border-radius:10px;font-weight:500}.chat-header-right{display:flex;align-items:center;gap:4px}.chat-header-btn{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;transition:background .2s}.chat-header-btn:active{background:var(--bg-tertiary)}.chat-header-btn.mode-active{background:var(--accent-light);color:var(--accent)}.chat-messages{flex:1;overflow-y:auto;padding:12px 16px;min-height:0}.chat-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-muted);font-size:13px;text-align:center;padding:20px;gap:8px}.chat-empty-icon{font-size:32px;opacity:.4}.chat-msg{margin-bottom:12px;animation:fadeIn .2s ease}.chat-msg-content{max-width:88%;padding:10px 14px;border-radius:var(--radius);font-size:14px;line-height:1.7;white-space:pre-wrap;word-wrap:break-word}.chat-msg.user{display:flex;justify-content:flex-end}.chat-msg.ai{display:flex;justify-content:flex-start}.chat-msg-user-wrapper{display:flex;flex-direction:row;align-items:flex-start;justify-content:flex-end;max-width:88%;gap:4px}.chat-msg-user-right{display:flex;flex-direction:column;align-items:flex-end;min-width:0}.chat-msg-rollback{background:none;border:none;cursor:pointer;font-size:13px;line-height:1;opacity:.25;padding:4px;margin-top:4px;transition:opacity .15s;color:var(--text-secondary);flex-shrink:0;border-radius:4px}.chat-msg-rollback:hover{opacity:1;background:var(--bg-tertiary)}.chat-msg-user-wrapper .chat-msg-user-inner{max-width:100%;background:var(--accent);color:#fff;padding:8px;border-radius:10px 10px 0/10px 10px 0px}.chat-msg-citations{margin-top:6px;width:100%}.chat-msg-citations-toggle{display:inline-flex;align-items:center;gap:4px;font-size:11px;padding:3px 10px;border-radius:var(--radius-xs);background:#ffffff26;color:#ffffffd9;cursor:pointer;transition:background .2s;white-space:nowrap}.chat-msg-citations-toggle:active{background:#ffffff40}.chat-msg-citations-preview{margin-left:6px;font-size:11px;opacity:.7;max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block;vertical-align:bottom}.chat-msg-citations-content{margin-top:4px;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-xs);padding:8px 10px;max-height:200px;overflow-y:auto}.chat-msg-citation-item{font-size:12px;line-height:1.6;color:#ffffffe6;white-space:pre-wrap;word-wrap:break-word;padding:4px 0}.chat-msg-citation-item+.chat-msg-citation-item{border-top:1px solid rgba(255,255,255,.15);margin-top:4px;padding-top:8px}.chat-streaming .chat-msg-content:after{content:"▍";animation:blink 1s step-end infinite;color:var(--accent)}.chat-input-area{display:flex;align-items:flex-end;gap:8px;padding:8px 12px;padding-bottom:calc(8px + var(--safe-bottom));border-top:1px solid var(--border);flex-shrink:0}.chat-input{flex:1;padding:10px 14px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:14px;line-height:1.5;resize:none;max-height:120px;min-height:40px;overflow-y:auto;transition:border-color .2s}.chat-input:focus{border-color:var(--accent)}.chat-input-editable{outline:none;white-space:pre-wrap;word-wrap:break-word;cursor:text;display:flex;flex-wrap:wrap;align-items:center;gap:4px;min-height:40px}.chat-input-editable:empty:before{content:attr(data-placeholder);color:var(--text-muted);pointer-events:none}.citation-chip{display:inline-flex;align-items:center;gap:2px;padding:1px 4px 1px 8px;background:var(--accent-light);border:1px solid var(--accent);border-radius:3px;font-size:12px;color:var(--accent);-webkit-user-select:none;user-select:none;white-space:nowrap;line-height:1.5;cursor:default}.citation-chip-remove{display:inline-flex;align-items:center;justify-content:center;width:14px;height:14px;border-radius:50%;font-size:11px;line-height:1;cursor:pointer;color:var(--accent);transition:background .15s}.citation-chip-remove:active{background:#4f8cff4d}.chat-input-btn{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;font-size:18px;transition:background .2s;flex-shrink:0}.chat-input-btn:disabled{opacity:.4}.chat-input-btn:not(:disabled):active{background:var(--accent-hover)}.chat-input-btn.mode-toggle{background:var(--bg-tertiary);color:var(--text-primary);font-size:15px;font-weight:700}.chat-input-btn.mode-toggle.active{background:var(--accent);color:#fff}.chat-input-btn.mode-toggle:active{background:var(--accent-light);color:var(--accent)}.mode-selector-overlay{position:fixed;top:0;left:0;right:0;bottom:0;z-index:1000;display:flex;align-items:center;justify-content:center;background:#0000004d;touch-action:none}.mode-selector{display:flex;flex-direction:column;gap:4px;background:var(--bg-card, var(--bg-secondary));border-radius:16px;padding:6px;box-shadow:0 8px 32px #00000040}.mode-selector-item{width:64px;height:56px;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;border-radius:12px;color:var(--text-secondary);background:transparent;transition:all .15s;user-select:none;-webkit-user-select:none}.mode-selector-item.active{background:var(--accent);color:#fff;transform:scale(1.1)}.mode-selector-item:not(.active){opacity:.5}.chat-input-row{display:flex;gap:8px;width:100%}.cloudsync-container{height:100%;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--bg-primary)}.cloudsync-card{width:100%;max-width:400px;display:flex;flex-direction:column;align-items:center;text-align:center}.cloudsync-icon{width:72px;height:72px;border-radius:50%;background:#6366f126;display:flex;align-items:center;justify-content:center;margin-bottom:20px}.cloudsync-icon svg{font-size:32px;color:var(--accent)}.cloudsync-title{font-size:22px;font-weight:700;color:var(--text-primary);margin:0 0 8px}.cloudsync-desc{font-size:14px;color:var(--text-secondary);margin:0 0 28px;line-height:1.6}.cloudsync-input-group{width:100%;display:flex;flex-direction:column;gap:10px;margin-bottom:20px}.cloudsync-label{font-size:13px;font-weight:600;color:var(--text-primary);text-align:left}.cloudsync-input{width:100%;background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border);border-radius:8px;padding:10px 14px;font-size:14px;outline:none;box-sizing:border-box}.cloudsync-input:focus{border-color:var(--accent)}.cloudsync-save-btn{width:100%;padding:10px;border:none;border-radius:8px;background:var(--accent);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:opacity .2s}.cloudsync-save-btn:disabled{opacity:.4;cursor:not-allowed}.cloudsync-save-btn.saved{background:#22c55e}.cloudsync-hint{width:100%;margin-bottom:24px;padding:12px 16px;background:var(--bg-tertiary);border-radius:8px;text-align:left}.cloudsync-hint p{font-size:12px;color:var(--text-secondary);line-height:1.6;margin:0}.cloudsync-hint p+p{margin-top:6px}.cloudsync-continue-btn{width:100%;padding:12px;border:none;border-radius:8px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:opacity .2s}.cloudsync-continue-btn:disabled{opacity:.4;cursor:not-allowed}.settings-container{height:100%;display:flex;flex-direction:column;background:var(--bg-primary)}.settings-header{display:flex;align-items:center;padding:12px 16px;padding-top:max(12px,env(safe-area-inset-top));border-bottom:1px solid var(--border);background:var(--bg-secondary);gap:12px;flex-shrink:0}.settings-back{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;background:var(--bg-tertiary);transition:background .2s;flex-shrink:0}.settings-back:active{background:var(--border-light)}.settings-header h2{font-size:18px;font-weight:700}.settings-body{flex:1;padding:16px;padding-bottom:calc(16px + var(--safe-bottom))}.settings-section{margin-bottom:24px}.settings-section-title{font-size:13px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:10px;padding:0 4px}.settings-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden}.settings-item{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--border)}.settings-item:last-child{border-bottom:none}.settings-item-info{flex:1;min-width:0}.settings-item-name{font-size:15px;font-weight:600;color:var(--text-primary)}.settings-item-desc{font-size:12px;color:var(--text-muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.settings-item-actions{display:flex;gap:4px;flex-shrink:0}.settings-chip{font-size:11px;padding:4px 10px;background:var(--accent-light);color:var(--accent);border-radius:10px;font-weight:500}.settings-item-btn{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;transition:background .2s}.settings-item-btn:active{background:var(--accent-light)}.settings-item-btn.danger:active{background:#ef444426}.settings-add-btn{width:100%;padding:14px;font-size:14px;font-weight:600;color:var(--accent);border:1px dashed var(--border-light);border-radius:var(--radius);transition:background .2s;margin-top:8px}.settings-add-btn:active{background:var(--accent-light)}.settings-font-control{display:flex;align-items:center;gap:8px;flex-shrink:0}.settings-font-btn{width:32px;height:32px;border:1px solid var(--border-light);border-radius:var(--radius);background:var(--bg-tertiary);color:var(--text-primary);font-size:16px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s}.settings-font-btn:hover:not(:disabled){background:var(--accent);color:#fff;border-color:var(--accent)}.settings-font-btn:disabled{opacity:.3;cursor:not-allowed}.settings-font-value{min-width:24px;text-align:center;font-size:15px;font-weight:600;color:var(--text-primary)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;background:#0009;display:flex;align-items:center;justify-content:center;padding:24px;animation:fadeIn .15s ease}.modal{width:100%;max-width:360px;background:var(--bg-secondary);border-radius:var(--radius);overflow:hidden;animation:fadeInUp .2s ease}.modal-header{padding:20px 20px 0;font-size:18px;font-weight:700}.modal-body{padding:16px 20px}.modal-body label{display:block;font-size:13px;color:var(--text-secondary);margin-bottom:6px;font-weight:500}.modal-body input,.modal-body textarea,.modal-body select{width:100%;padding:10px 14px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-size:14px;margin-bottom:14px;transition:border-color .2s}.modal-body input:focus,.modal-body textarea:focus,.modal-body select:focus{border-color:var(--accent)}.modal-body select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23a0a0b0' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}.modal-body textarea{min-height:80px;resize:vertical}.modal-footer{display:flex;gap:8px;padding:0 20px 20px}.modal-btn{flex:1;padding:12px;font-size:14px;font-weight:600;border-radius:var(--radius-sm);transition:background .2s;text-align:center}.modal-btn.cancel{background:var(--bg-card);color:var(--text-secondary)}.modal-btn.cancel:active{background:var(--border)}.modal-btn.confirm{background:var(--accent);color:#fff}.modal-btn.confirm:active{background:var(--accent-hover)}.modal-btn.danger{background:var(--danger);color:#fff}.modal-btn.danger:active{background:var(--danger-hover)}.toast{position:fixed;bottom:100px;left:50%;transform:translate(-50%);z-index:300;background:var(--bg-secondary);color:var(--text-primary);padding:12px 24px;border-radius:var(--radius);font-size:14px;font-weight:500;box-shadow:var(--shadow);border:1px solid var(--border);animation:fadeInUp .2s ease;max-width:80%;text-align:center}.diff-overlay{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-primary)}.diff-bar{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:var(--bg-secondary);border-bottom:1px solid var(--border);flex-shrink:0;gap:12px}.diff-bar-left{display:flex;align-items:center;gap:10px;min-width:0}.diff-bar-title{font-size:14px;font-weight:600;color:var(--text-primary);white-space:nowrap}.diff-bar-count{font-size:12px;color:var(--text-muted);white-space:nowrap}.diff-bar-actions{display:flex;gap:8px;flex-shrink:0}.diff-btn{padding:6px 14px;font-size:13px;font-weight:600;border-radius:var(--radius-sm);transition:background .2s;display:flex;align-items:center}.diff-btn-accept{background:var(--success);color:#fff}.diff-btn-accept:active{opacity:.8}.diff-btn-reject{background:var(--bg-card);color:var(--text-secondary);border:1px solid var(--border)}.diff-btn-reject:active{background:var(--border)}.diff-content{flex:1;overflow-y:auto;padding:8px 0;font-family:inherit}.diff-empty{display:flex;align-items:center;justify-content:center;height:100%;color:var(--text-muted);font-size:14px}.diff-line{display:flex;align-items:stretch;min-height:32px;font-size:14px;line-height:1.7;transition:background .1s}.diff-line-unchanged{background:transparent}.diff-line-unchanged:hover{background:var(--bg-tertiary)}.diff-line-deleted{background:#ef444414}.diff-line-deleted.diff-line-checked{background:#ef444426}.diff-line-added{background:#22c55e14}.diff-line-added.diff-line-checked{background:#22c55e26}.diff-line-actions{width:44px;flex-shrink:0;display:flex;align-items:flex-start;justify-content:center;padding-top:4px}.diff-line-toggle{width:28px;height:28px;border-radius:6px;border:2px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;cursor:pointer;transition:all .15s;color:transparent;-webkit-user-select:none;user-select:none;background:var(--bg-primary)}.diff-line-toggle[data-checked=true]{background:var(--accent);border-color:var(--accent);color:#fff}.diff-line-toggle:active{transform:scale(.9)}.diff-line-prefix{width:20px;flex-shrink:0;display:flex;align-items:flex-start;justify-content:center;padding-top:5px;font-size:12px;font-weight:700;font-family:monospace;-webkit-user-select:none;user-select:none}.diff-line-minus{color:#ef4444}.diff-line-plus{color:#22c55e}.diff-line-text{flex:1;white-space:pre-wrap;word-break:break-word;padding:5px 8px 5px 0;min-width:0}.chapter-sheet-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000059;z-index:1100;display:flex;flex-direction:column;justify-content:flex-end;animation:cs-fade-in .15s ease}@keyframes cs-fade-in{0%{opacity:0}to{opacity:1}}.chapter-sheet{background:var(--bg-primary);border-radius:16px 16px 0 0;max-height:70vh;display:flex;flex-direction:column;animation:cs-slide-up .25s ease}@keyframes cs-slide-up{0%{transform:translateY(100%)}to{transform:translateY(0)}}.chapter-sheet-header{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 12px;flex-shrink:0}.chapter-sheet-header h3{font-size:18px;font-weight:700;color:var(--text-primary)}.chapter-sheet-add-btn{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;background:var(--accent);color:#fff;transition:opacity .15s}.chapter-sheet-add-btn:active{opacity:.8}.chapter-sheet-list{flex:1;overflow-y:auto;padding:0 16px 12px;-webkit-overflow-scrolling:touch}.chapter-sheet-item{display:flex;align-items:center;gap:10px;padding:12px;border-radius:10px;margin-bottom:4px;transition:background .15s;cursor:pointer;-webkit-user-select:none;user-select:none}.chapter-sheet-item:active{background:var(--bg-tertiary)}.chapter-sheet-item-active{background:var(--accent-light)}.chapter-sheet-drag-handle{flex-shrink:0;color:var(--text-tertiary);font-size:14px;cursor:grab;padding:4px}.chapter-sheet-item-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.chapter-sheet-item-title{font-size:15px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chapter-sheet-item-active .chapter-sheet-item-title{color:var(--accent)}.chapter-sheet-item-preview{font-size:12px;color:var(--text-tertiary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chapter-sheet-item-actions{display:flex;gap:2px;flex-shrink:0}.chapter-sheet-item-btn{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--text-secondary);transition:background .15s}.chapter-sheet-item-btn:active{background:var(--bg-tertiary)}.chapter-sheet-item-btn-del:active{background:#ef444426;color:#ef4444}.chapter-sheet-item-edit-input{width:100%;font-size:15px;font-weight:600;color:var(--text-primary);background:var(--bg-primary);border:1px solid var(--accent);outline:none;border-radius:6px;padding:6px 10px}.chapter-sheet-handle{display:flex;justify-content:center;padding:12px 0;padding-bottom:max(12px,env(safe-area-inset-bottom));flex-shrink:0}.chapter-sheet-handle-bar{width:36px;height:4px;border-radius:2px;background:var(--border-light)}.cl-container{height:100%;display:flex;flex-direction:column;background:var(--bg-primary)}.cl-header{display:flex;align-items:center;padding:12px 16px;padding-top:max(12px,env(safe-area-inset-top));border-bottom:1px solid var(--border);background:var(--bg-secondary);gap:12px;flex-shrink:0}.cl-back{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;background:var(--bg-tertiary);transition:background .2s;flex-shrink:0}.cl-back:active{background:var(--border-light)}.cl-header-info{flex:1;display:flex;flex-direction:column;min-width:0;gap:1px}.cl-header-title{font-size:16px;font-weight:700;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cl-header-count{font-size:12px;color:var(--text-muted)}.cl-add-btn{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;background:var(--bg-tertiary);color:var(--text-secondary);transition:background .2s;flex-shrink:0}.cl-add-btn:active{background:var(--border-light)}.cl-header-btn{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;background:var(--bg-tertiary);color:var(--text-secondary);transition:background .2s;flex-shrink:0}.cl-header-btn:active{background:var(--border-light)}.cl-list{flex:1;overflow-y:auto;padding:8px 16px;padding-bottom:calc(8px + var(--safe-bottom));-webkit-overflow-scrolling:touch}.cl-item{display:flex;align-items:center;gap:10px;padding:14px 12px;border-radius:10px;margin-bottom:4px;transition:background .15s;cursor:pointer;-webkit-user-select:none;user-select:none;border-bottom:1px solid var(--border)}.cl-item:active{background:var(--bg-tertiary)}.cl-drag-handle{flex-shrink:0;color:var(--text-muted);font-size:14px;cursor:grab;padding:4px}.cl-item-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:3px}.cl-item-title{font-size:15px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cl-item-preview{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cl-item-meta{flex-shrink:0;padding-left:8px}.cl-item-wordcount{font-size:11px;color:var(--text-muted);white-space:nowrap}.cl-item-actions{display:flex;gap:2px;flex-shrink:0}.cl-item-btn{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--text-secondary);transition:background .15s}.cl-item-btn:active{background:var(--bg-tertiary)}.cl-item-btn-del:active{background:#ef444426;color:#ef4444}.cl-item-edit-input{width:100%;font-size:15px;font-weight:600;color:var(--text-primary);background:var(--bg-primary);border:1px solid var(--accent);outline:none;border-radius:6px;padding:6px 10px}.ref-toolbar{display:flex;align-items:center;gap:8px;padding:8px 16px;border-top:1px solid var(--border);background:var(--bg-secondary);flex-shrink:0;flex-wrap:wrap}.ref-tags{display:flex;align-items:center;gap:6px;flex-wrap:wrap;flex:1;min-width:0}.ref-tag{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;background:var(--accent-light);border-radius:12px;font-size:12px;color:var(--accent);white-space:nowrap}.ref-tag-text{max-width:80px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ref-tag-remove{width:16px;height:16px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:10px;color:var(--accent);transition:background .15s}.ref-tag-remove:active{background:#4f8cff40}.ref-add-btn{display:inline-flex;align-items:center;gap:4px;padding:5px 12px;border-radius:14px;font-size:12px;color:var(--text-secondary);background:var(--bg-tertiary);transition:background .15s;white-space:nowrap;flex-shrink:0}.ref-add-btn:active{background:var(--accent-light);color:var(--accent)}.ref-sheet-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:1200;display:flex;flex-direction:column;justify-content:flex-end;animation:ref-fade-in .15s ease}@keyframes ref-fade-in{0%{opacity:0}to{opacity:1}}.ref-sheet{background:var(--bg-primary);border-radius:16px 16px 0 0;max-height:70vh;display:flex;flex-direction:column;animation:ref-slide-up .25s ease}@keyframes ref-slide-up{0%{transform:translateY(100%)}to{transform:translateY(0)}}.ref-sheet-header{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 12px;flex-shrink:0}.ref-sheet-header h3{font-size:18px;font-weight:700;color:var(--text-primary)}.ref-sheet-close{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--text-secondary);transition:background .15s}.ref-sheet-close:active{background:var(--bg-tertiary)}.ref-sheet-list{flex:1;overflow-y:auto;padding:0 16px 8px;-webkit-overflow-scrolling:touch}.ref-sheet-item{display:flex;align-items:center;gap:12px;padding:14px 12px;border-radius:10px;margin-bottom:4px;transition:background .15s;cursor:pointer;-webkit-user-select:none;user-select:none}.ref-sheet-item:active{background:var(--bg-tertiary)}.ref-sheet-item-checked{background:var(--accent-light)}.ref-sheet-item-current{opacity:.6;cursor:default}.ref-sheet-checkbox{width:22px;height:22px;border-radius:6px;border:2px solid var(--border-light);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .15s}.ref-sheet-item-checked .ref-sheet-checkbox{background:var(--accent);border-color:var(--accent)}.ref-sheet-checkmark{color:#fff;font-size:13px;font-weight:700}.ref-sheet-item-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.ref-sheet-item-title{font-size:15px;font-weight:600;color:var(--text-primary);display:flex;align-items:center;gap:6px}.ref-sheet-item-current-badge{font-size:10px;font-weight:500;color:var(--text-muted);background:var(--bg-tertiary);padding:1px 6px;border-radius:8px}.ref-sheet-item-preview{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ref-sheet-item-count{font-size:11px;color:var(--text-muted);white-space:nowrap;flex-shrink:0;padding-left:4px}.ref-sheet-footer{display:flex;justify-content:flex-end;padding:12px 20px;padding-bottom:max(12px,env(safe-area-inset-bottom));border-top:1px solid var(--border);flex-shrink:0}.ref-sheet-confirm{padding:10px 24px;border-radius:20px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;transition:opacity .15s}.ref-sheet-confirm:active{opacity:.85}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary: #1a1a2e;--bg-secondary: #16213e;--bg-tertiary: #0f3460;--bg-card: #1e2a4a;--text-primary: #e8e8e8;--text-secondary: #a0a0b0;--text-muted: #6b7280;--accent: #4f8cff;--accent-hover: #3a7bff;--accent-light: rgba(79, 140, 255, .15);--danger: #ef4444;--danger-hover: #dc2626;--success: #22c55e;--border: #2a3a5e;--border-light: #3a4a6e;--radius: 12px;--radius-sm: 8px;--radius-xs: 4px;--shadow: 0 2px 12px rgba(0, 0, 0, .3);--safe-bottom: env(safe-area-inset-bottom, 0px)}html,body,#root{height:100%;width:100%;overflow:hidden}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg-primary);color:var(--text-primary);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}input,textarea,[contenteditable]{-webkit-user-select:text;user-select:text}button{font-family:inherit;cursor:pointer;border:none;outline:none;background:none;color:inherit;font-size:inherit}input,textarea{font-family:inherit;outline:none;border:none;background:none;color:inherit;font-size:inherit}.scrollable{overflow-y:auto;-webkit-overflow-scrolling:touch}.scrollable::-webkit-scrollbar{width:4px}.scrollable::-webkit-scrollbar-track{background:transparent}.scrollable::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}